Sorry, I didn't look at what I was clicking. I should've said "the feed". That's what I'm seeing everyone else's business on. Is that controllable? That's what I'm not very comfortable with. Or is it something each person posts to?
bvr

That just hides the favorites listing from public view, but added items still show up with the username on the feed.
(Probably a bug - I assume these entries could/should be filtered to "somebody added..." just as with purchases.)